package org.shoukaiseki.supersaiyan.generator.controller;

import com.alibaba.fastjson2.JSONObject;
import org.apache.commons.io.IOUtils;
import org.apache.velocity.Template;
import org.apache.velocity.VelocityContext;
import org.apache.velocity.app.Velocity;
import org.shoukaiseki.common.utils.StringUtils;
import org.shoukaiseki.supersaiyan.common.annotation.Log;
import org.shoukaiseki.supersaiyan.common.config.SuperSaiyanConfig;
import org.shoukaiseki.supersaiyan.common.constant.Constants;
import org.shoukaiseki.supersaiyan.common.core.controller.BaseController;
import org.shoukaiseki.supersaiyan.common.core.domain.base.AjaxResult;
import org.shoukaiseki.supersaiyan.common.core.domain.SysDictData;
import org.shoukaiseki.supersaiyan.common.core.page.TableDataInfo;
import org.shoukaiseki.supersaiyan.common.core.text.Convert;
import org.shoukaiseki.supersaiyan.common.enums.BusinessType;
import org.shoukaiseki.supersaiyan.generator.config.BaseGenConfig;
import org.shoukaiseki.supersaiyan.generator.domain.GenResourceConf;
import org.shoukaiseki.supersaiyan.generator.domain.GenTable;
import org.shoukaiseki.supersaiyan.generator.domain.GenTableColumn;
import org.shoukaiseki.supersaiyan.generator.domain.convert.JsonToBean;
import org.shoukaiseki.supersaiyan.generator.domain.qo.GenTableQO;
import org.shoukaiseki.supersaiyan.generator.domain.vo.GroupPreviewCodeVO;
import org.shoukaiseki.supersaiyan.generator.service.IGenTableColumnService;
import org.shoukaiseki.supersaiyan.generator.service.IGenTableService;
import org.shoukaiseki.supersaiyan.generator.util.VelocityInitializer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.StringWriter;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 代码生成 操作处理
 *
 * @author ruoyi
 */
@RestController
@RequestMapping("/tool/gen")
public class GenController extends BaseController
{
    @Resource
    private SuperSaiyanConfig superSaiyanConfig;

    @Autowired
    private IGenTableService genTableService;

    @Autowired
    private IGenTableColumnService genTableColumnService;

    @Autowired
    private BaseGenConfig baseGenConfig;

    @PostMapping("/resourceConfList")
    public AjaxResult genResourceConfList(){
        List<GenResourceConf> resourceConfList = baseGenConfig.getResourceConfList();

        List<SysDictData> list=new ArrayList<>();

        for (GenResourceConf genResourceConf : resourceConfList) {
            SysDictData dictData = new SysDictData();
            dictData.setDictValue(genResourceConf.getValue());
            dictData.setDictLabel(genResourceConf.getName());
            list.add(dictData);
        }

        return AjaxResult.successData(list);
    }


    /**
     * 查询代码生成列表
     */
    @PreAuthorize("@ss.hasPermi('tool:gen:list')")
    @GetMapping("/list")
    public TableDataInfo genList(GenTableQO qo)
    {
        startPage();
        List<GenTable> list = genTableService.selectGenTableList(qo);
        return getDataTable(list);
    }

    /**
     * 修改代码生成业务
     */
    @PreAuthorize("@ss.hasPermi('tool:gen:query')")
    @GetMapping(value = "/{tableId}")
    public AjaxResult getInfo(@PathVariable Long tableId)
    {
        GenTable table = genTableService.selectGenTableById(tableId);
        List<GenTable> tables = genTableService.selectGenTableAll();
        List<GenTableColumn> list = genTableColumnService.selectGenTableColumnListByTableId(tableId);
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("info", table);
        map.put("rows", list);
        map.put("tables", tables);
        return AjaxResult.success(map);
    }

    /**
     * 查询数据库列表
     */
    @PreAuthorize("@ss.hasPermi('tool:gen:list')")
    @GetMapping("/db/list")
    public TableDataInfo dataList(GenTableQO qo)
    {
        startPage();
        List<GenTable> list = genTableService.selectDbTableList(qo);
        return getDataTable(list);
    }

    /**
     * 查询数据表字段列表
     */
    @PreAuthorize("@ss.hasPermi('tool:gen:list')")
    @GetMapping(value = "/column/{tableId}")
    public TableDataInfo columnList(Long tableId)
    {
        TableDataInfo dataInfo = new TableDataInfo();
        List<GenTableColumn> list = genTableColumnService.selectGenTableColumnListByTableId(tableId);
        dataInfo.setRows(list);
        dataInfo.setTotal(list.size());
        return dataInfo;
    }

    /**
     * 导入表结构（保存）
     */
    @PreAuthorize("@ss.hasPermi('tool:gen:import')")
    @Log(title = "代码生成", businessType = BusinessType.IMPORT)
    @PostMapping("/importTable")
    public AjaxResult importTableSave(String tables)
    {
        String[] tableNames = Convert.toStrArray(tables);
        // 查询表信息
        List<GenTable> tableList = genTableService.selectDbTableListByNames(tableNames);
        genTableService.importGenTable(tableList);
        return AjaxResult.success();
    }

    /**
     * 修改保存代码生成业务
     */
    @PreAuthorize("@ss.hasPermi('tool:gen:edit')")
    @Log(title = "代码生成", businessType = BusinessType.UPDATE)
    @PutMapping
    public AjaxResult editSave(@Validated @RequestBody GenTable genTable)
    {
        genTableService.validateEdit(genTable);
        genTableService.updateGenTable(genTable);
        return AjaxResult.success();
    }

    /**
     * 删除代码生成
     */
    @PreAuthorize("@ss.hasPermi('tool:gen:remove')")
    @Log(title = "代码生成", businessType = BusinessType.DELETE)
    @DeleteMapping("/{tableIds}")
    public AjaxResult remove(@PathVariable Long[] tableIds)
    {
        genTableService.deleteGenTableByIds(tableIds);
        return AjaxResult.success();
    }

//    /**
//     * 预览代码
//     */
//    @PreAuthorize("@ss.hasPermi('tool:gen:preview')")
//    @GetMapping("/preview/{tableId}")
//    public AjaxResult preview(@PathVariable("tableId") Long tableId) throws IOException
//    {
//        Map<String, String> dataMap = genTableService.previewCode(tableId);
//        return AjaxResult.success(dataMap);
//    }

    /**
     * 生成代码（下载方式）
     */
    @PreAuthorize("@ss.hasPermi('tool:gen:code')")
    @Log(title = "代码生成", businessType = BusinessType.GENCODE)
    @GetMapping("/download/{tableName}")
    public void download(HttpServletResponse response, @PathVariable("tableName") String tableName) throws IOException
    {
        byte[] data = genTableService.downloadCode(tableName);
        genCode(response, data);
    }

//    /**
//     * 生成代码（自定义路径）
//     */
//    @PreAuthorize("@ss.hasPermi('tool:gen:code')")
//    @Log(title = "代码生成", businessType = BusinessType.GENCODE)
//    @GetMapping("/genCode/{tableName}")
//    public AjaxResult genCode(@PathVariable("tableName") String tableName)
//    {
//        genTableService.generatorCode(tableName);
//        return AjaxResult.success();
//    }

    /**
     * 同步数据库
     */
    @PreAuthorize("@ss.hasPermi('tool:gen:edit')")
    @Log(title = "代码生成", businessType = BusinessType.UPDATE)
    @GetMapping("/synchDb/{tableName}")
    public AjaxResult synchDb(@PathVariable("tableName") String tableName)
    {
        genTableService.synchDb(tableName);
        return AjaxResult.success();
    }

    /**
     * 批量生成代码
     */
    @PreAuthorize("@ss.hasPermi('tool:gen:code')")
    @Log(title = "代码生成", businessType = BusinessType.GENCODE)
    @GetMapping("/batchGenCode")
    public void batchGenCode(HttpServletResponse response, String tables) throws IOException
    {
        String[] tableNames = Convert.toStrArray(tables);
        byte[] data = genTableService.downloadCode(tableNames);
        genCode(response, data);
    }

    /**
     * 生成zip文件
     */
    private void genCode(HttpServletResponse response, byte[] data) throws IOException
    {
        String filename= superSaiyanConfig.getGenCodeZipName();
        response.reset();
        response.addHeader("Access-Control-Allow-Origin", "*");
        response.addHeader("Access-Control-Expose-Headers", "Content-Disposition");
        response.setHeader("Content-Disposition", "attachment; filename=" + URLEncoder.encode(filename+".zip", "UTF-8"));
        response.addHeader("Content-Length", "" + data.length);
        response.setContentType("application/octet-stream; charset=UTF-8");
        IOUtils.write(data, response.getOutputStream());
    }



    /**
     * 预览代码
     */
    //@PreAuthorize("@ss.hasPermi('tool:gen:preview')")
    @GetMapping("/groupPreview/{tableId}")
    public AjaxResult groupPreview(@PathVariable("tableId") Long tableId) throws IOException
    {
        Map<String, GroupPreviewCodeVO> dataMap = genTableService.groupPreviewCode(tableId);
        return AjaxResult.successData(dataMap);
    }

    /**
     * json转对象
     */
    @PostMapping("/jsonToBean")
    public AjaxResult jsonToBean(@RequestBody String json) throws IOException
    {
        List<JsonToBean> jtbList=new ArrayList<>();
        JSONObject jo = JSONObject.parseObject(json);
        for (String propName : jo.keySet()) {
            JsonToBean jtb = new JsonToBean();
            jtb.setJsonPropName(propName);
            jtb.setFieldName(StringUtils.firstLowerCase(StringUtils.toCamelCase(propName)));
            jtbList.add(jtb);
        }
        VelocityInitializer.initVelocity();
        VelocityContext velocityContext = new VelocityContext();
        velocityContext.put("jtbList",jtbList);
        // 渲染模板
        StringWriter sw = new StringWriter();
        String template="vm/convert/jsonToJavaBean.vm";
        Template tpl = Velocity.getTemplate(template, Constants.UTF8);
        tpl.merge(velocityContext, sw);
        Map<String, String> dataMap = new HashMap<>();
        dataMap.put("java",sw.toString());
        return AjaxResult.success(dataMap);
    }
}
